I think I've really screwed it up now. I followed the directions outlined above, and now I can't do anything. When I start it up, it boots into Windows Boot Manager with a single entry for Ubuntu. When I selected that, it gives me the usual warning that it can't find the .efi file or .mbr file. The (really) bad part is that I can't get to the UEFI Firmware Setup (i.e., the old BIOS menu), so I can't boot from a USB - I'm stuck. When I boot it up, it does flash for a split second, almost like it goes to another screen (the UEFI menu?), but then goes into the Win Boot Mgr.
Does anyone have any ideas as to how to get out of this jam?
Thanks,
Nipper
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